If Facebook pays up, experts say Yahoo may go full time patent troll

VB: Yahoo has put the IP squeeze on Facebook, slapping it with a patent lawsuit during the quiet period in the run up to the social network’s IPO. While it’s tempting to see this as the first shot fired in a broader patent war centered around social networking, Lance Lieberman, a veteran New York patent lawyer with a specialty in software, thinks it’s just Yahoo’s first step down the dark path towards life as a patent troll.